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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
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on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Dec 2002 Posts: 3,445 Moderator - The Electrical Bay | | Moderator - The Electrical Bay Joined: Dec 2002 Posts: 3,445 | I scored a nice looking 4 speed transmission out of a 2 wheel drive 67 C20 pickup.
They should both be SM420's.
Question: Will I be able to use that transmission in my 4 wheel drive 67 K20 Suburban that (allegedly) has an SM420 and a Rockwell 221 Transfer case?
I'm assuming that the output shaft cover will need to be changed over from the 4wd trans to the 2wd trans.
Ideas?
Last edited by Rusty Rod; 04/26/2021 1:16 AM.
Another quality post.
Real Trucks Rattle
HELP! The Paranoids are after me!
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